Steam-jet conveyer for ashes or other light substances



2 Sheets--Sheet 1 (No Model.)

W. McOLAVE. STEAM JET GONVEYER FOR ASHES ,OR OTHER LIGHT SUBSTANCES.

N0.490,584. PatentedJan. 24,1893.

2 Sheets-Sheet 2.

(No Model.)

W. M O'LAVE. STEAM JET GONVEYER FOR ASHES OR OTHER LIGHT SUBSTANCES. No.490,584.

Patented Jan. 24, 1893.

STATES WILLIAM MOCLAVE, OF SORANTON, PENNSYLVANIA.

STEAM-JET CONVEYER FOR ASHES OR OTHER LIGHT SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 490,584, dated January24, 1893. Application filed November 12, 189%. Serial No. 451,818. (Nomodel.)

To all whom it may concern:

' Be it known that I, WILLIAM MOCLAVE, a citizen of the United States,residing at Scranton, in the county of Lackawanna and State ofPennsylvania, have invented certain new and useful Improvementsin'Steam-Jet Oonveyers for Ashes and other Light Substances; and I dohereby declare the following to bea full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to steam jet suction conveyers for removing ashesand clinkers from ash pits, and also for moving coal-dust, culm and thelike from one place to another, and its object is to provide forinsuring an open or unobstructed passage substantially equal to theinternal diameter of the conveyer tube, within the circle of a steamjetting device of ring or other analogous form, and at the same timeinsure an effective displacement of air at both the central portion andinner surface of the conveyer tube, and thereby cause a powerful suctionof air for performing the conveying operation.

This invention consists in a specific construction and combination of aconveyer tube, and a ring or other analogous steam jetting deviceapplied outside the internal diameter of the receiving end of theconveyer tube, said ring jetting device being arranged to jet steam byone portion of the orifices with a convergence at a certain angle or atdifferent angles toward the center of the tube, and with the otherportion parallel with and near the inner surface of said tube; and thering of the jetting device being arranged substantially outside therange of the substances being conveyed, and thus not materially offer anobstruction to the passage of the same.

In the accompanying drawings, Figure] is a longitudinal section of aportion of my improved conveyer tube with steam jetting suction ring ordevice constructed as a part of it; Fig. 2 is a similar section, showingthe tube slightly changed in form, and its orifices constructed andarranged in a slightly diiferent manner. Fig. 3 is a section similar toFig. 1, showing the steam jetting ring constructed Separately from thetube, and provided with nozzles which eject the steam in the same manneras it is ejected in Fig. 1. In all the views mentioned, the steamjetting orifices or I nozzles are intended to be extended entirelyaround the ring, but they are left out of the views in order to moreplainly illustrate the manner in which the steam is ejected by every twoor every three of the jets throughout the circle of the ring. Fig. 4 isa cross section of a conveyer having a steam jetting ring with onecircle of jet orifices looking toward the induction end of the tube.Figs. 5, 6 and 7 are sections of the ring in the lines yy, y g', y y ofFig. 4, showing the manner in which the steam is jetted by every tripletset of the circle of orifices. Fig. 8 is a cross section of Figs. 1 and2, and Fig. 9 a section of the ring in the line 20-20 of Fig. 8, showingthe manner in which the steam is ejected from every triplet set of jetpassages arranged in three circles in the ring. Fig. 10 is a crosssection of a tube witharing having two circles of steam jet passages,and Fig. 11 is a section of the ring, showing the manner in which thesteam is jetted from every pair of jet passages arranged in two circlesin the ring. Fig. 12 is a section of a tube, and Fig. 13 is asection ofa ring adapted for such tube, showing how steam is ejected substantiallyparallel with the inner surface of the tube, and also converging towardthe center of the same, from every pair of orifices of two circles oforifices in said ring. Fig. 14 is a cross section of the tube shown inFig. 3, and Fig. 15 is a section of a hollow ring having a chamber ofoval form in cross section, used in said tube, and showing the manner inwhich the steam is jetted in triplet jets from every three nozzles ofthe three circles of nozzles in the ring.

Ain the drawings represents aportion of a conveyer, tube, its airinduction portion a being of less diameter than its steam induction orreceiving portion a. The portion a, by means of a shoulder or stepportion a is united to the portion a, and this step portion is made inform of a hollow ring B with a steaminduction pipe b and blow off oreduction passage 1?. The eduction passage is furnished with a screwcollar in which a screw cap 0 is fitted. In the forward surface of thehollow ring, steam jet passages 01, d, (Z are provided, those d beingbored parallel with the inner surface ofthe tube; those cl slightly Iconvergent toward the center of the tube, and

those (Z having a still greater convergence in the same direction. Thesejet passages are arranged in a single circle around the ring, as shownin Fig. 4c, and every three of the circles act to jet steam in themanner indicated in Figs. 1, 5, 6 and 7. ith this construction, thesteam is jetted parallel with the inner surface of the tube, andconvergent at different angles toward the center of the tube, or so asto displace the air near the surface of the tube, and also at the centerof the tube, and thus produce a powerful suction of air behind itthrough the receiving end of the tube, and thereby convey light finesubstances, such as ashes, coal-dust, culm and the like very effectivelythrough the tube to a place of deposit. By the construction shown inFigs. 8 and 9, the same result is produced by constructing and arrangingthe jet orifices in three circles in the ring. By the construction shownin Figs. 10 and 11, the same result is produced, substantially, byconstructing and arranging the steam jet orifices in two circles in thering, and with one of each pair bored parallel with the inner surface ofthe tube, and the other convergent toward the center of the tube. By theplan shown in Figs. 12 and 13, the same result is produced by givingboth of the steam jet orifices of each pair of the two circles oforifices a convergence toward the center of the tube, the convergence ofthe orifices (Z being so slight that its action is practically the sameas when the bore is parallel with the said surface of the tube; and inFigs. l-l and 15 the construction is changed simply by having the ringconstructed with an oval chamber and provided with nozzles instead oforifices, and to slip upon the tube, its nozzles entering the portion aof the conveyer tube through the shoulder (2 This construction is moreespecially substantially the same as that shown in Figs. 8 and 9.

With all the constructions, an improved conveyor, comprising a tube andsteam jetting device of ring or any other suitable geometrical form isprovided; and either of the forms shown affords free passage through thetube of ashes, coal-dust culm and the like. It is a very importantmatter to have the central portion of the tube supplied with the jettedsteam, and to this end I took out Letters Patent dated May 10, 1885, No.318,008, and were it not necessary to keep the central opening of thering substantially unobstructed, my said patent would answer perfectly.

But the smaller inner ring of said patent cannot be used as beneficiallyfor the purposes herein mentioned, as it would interfere somewhat withthe conveyance of clinkers and the like through the center of the steamjetting device used in my present invention.

I am aware that outside a tube, and used separately therefrom, jettingdevices, having divergent spraying orifices, are old, but it is thesteam jetting device inclosed in a conveyor tube that makes up thenovelty and utility of my construction and combination.

It is practical to employ the construction herein described in a suctionconveyer where the steam jetting devices are placed tandem as in myapplication for a patent, Serial No. trance, filed October 15, 1892, andI contemplate using the same in that manner, but make no claim here forthe tandem arrangement described and claimed in said application.

The improved steam jetting devices herein described can be used toadvantage for supplying air to ash-pits or furnaces for promotingcombustion of fuel on grates; and the peculiar jetting devices inclosedin a tube can be applied at the ends of boiler tubes for the purpose ofsucking and conveying soot and ashes out of said tubes.

What I claim as my invention is:

The combination with a conveyer tube, of a hollow steam jetting deviceof ring or analogous geometrical form and having steam jet dischargingorifices or nozzles between its inner and outer boundaries, said devicesbeing applied substantially outside the range of the substances beingconveyed as well as of the air which is caused to flow into the tube bythe action of the steam jets, and thus offering no obstruction to thesame within the tube; the said steam jet orifices or nozzles of saidsteam jetting device being arranged to jet steam from the same jettingdevice by one portion of the orifices or nozzles with a convergence at acertain or different angles toward the center of the tube, and with theother portion of the orifices or nozzles parallel or substantiallyparallel with and near the inner surface of the said tube, substantiallyas described.

In testimony whereof I hereunto affix mysignature in presence of twoWitnesses.

WILLIAM MCGLAVE. Witnesses:

E. T. FENWICK, C. CALVERT HINES.

